Fuel injector and burner.



Nb. 657,579. A al. WHITE.

FUEL INJECTORIAND BURNER.

(Appuwam ma Aug; fa, mas.)

(Ho Model.)

NMNN

WITNESSES 1A VUNITD STATES eEoRG-E *vvnifrn'- 0F JERSEY.CITY,.- NEW JERSEY, Assiduon no D'Avrb l' Beit known that I, GEORGE WHITE, of J erf sey City, in the county of Hudson, in the State .of New Jersey, have invented nevi and useful 5 Improvements in Fuel Injectors and Burners, -of which thefollowing, taken inv connection ivith ;t 19 e9cer nrmxmgldrenngstmn hill;

My -iu ventio relates'tl the -combustion ofv oil and coal-dust, by which a'high :degree o'f heat isehtained'qucklyland maintained steadily -witheconomy 'of 'fuel; and it con-- siste .principally of an 'apparatus constructed i and arranged toseparately feed oil and coal` dust into the' combustion-chambrof a fur` nace insueh af manner that the ignited oil will be directed across the path of coal-dust," instxtlyignitingand mechanicellydistribut lng The linvention also consists in the' general' construction and arrangement ofthe apparatus which I-have designed 'carry out this part ofmy invention.4A

A v This apparatus consists, essentially, of a 25 'conduit thronghwhch coal-dust is delivered into the c ombustiomchamb'er under a' high velocity by an air-'blast or. other suitable means, a conduit fgrsupplyi'g Oil@ nozzle for su pplyig steam, the latter having a`grad-- nellyexpanding exit iii-communication with the'oilfconduit, and adeflector for directing the `oil across the path of coal-dust, the oil b ein g deliveredinto the. combustion-chamber by a blast of steam. 35 My invention will be. better understood by @reference to -tlie accompanying drawings, in

' vwhich the same reference characters indicate the same parte in`all the figures.

Figure l is en -longitudinal section of the 4o burner end supply mechanism that. I have `devised for putting :ny-invention into prac-fv tical operation. Fig. II is substantially a rear elevation, being n section taken on line Il Il of Fig. l. Fig. lil is an enlarged'view of n portion of my mechanism, illustrating the means for cent1-051mg the ciber-idees, portions being shown in section and portions in eleva-f tion. i Fig. IV is 'a cross-section of' the pre? ceding-[linken on une lV 1V?" 5o In the several views the numeral l1 indirates a conduit. having an opening 2, th rough 'gradually-expanding exit 8. @A pipe 10, pro- 7S f supported in a screwrcnpfl GRER AND ELISHA G, SELCHOW, I` RUS I EES OF YORK, Y.

i vvhieh cealfdu'st'is delivered frein n nlverilvlc'r erothersource' of supply 'The conduitopens finto the conlbus-tionfchanibex: of the furnace Sensus tn beliriednrsdt0 dus centrally arrang@ interiore@mining 1re' noz'zleandanfol conduit, the latter bcingarranged concentric with the coal-dust' conduit and surrounding the steam-nozzle with svhich'- it communicates: `A pipe' 3, provided with a' valve 45, suppliestbesteam to a chamber 5,A and as 'the'steamnozzlc communicates with vsaid chainberfit will, be`seen that a constz'int and' uniform supply of steam isprovidech The nozzle a is of peculiar constrntnz, its` duct-being of uniform diameter for a."porti u of itslength, as shown at G, thenconiracted, as shwn at 7, 'and final-ly terminating' vided with a valve 1l,suppl ies oil to tlieclx'am'- 'bc1"12,'wh ich is in communication with the oil-'conduit 13. The conduit 13 has its inner end closed by a plug 14 and is provided with series of inclined orifices 1.5. l5, the purpose of whichwill be hereinafter explained.

18,is a rotatable slceve'fittcd around the steainfnozzle and formed with triangularopenings 1`9 19, one foreach series of orifices, two being-shown, for cutting oi as many of -hes orifices as'may be desired to regulate the spply of oil. The sleeve is turned' by handle 20 and is provided at the rear with the indie catorl and scale 22 for indicating the numloer of orifices opened and closed.

25 is a. rod centrally arranged witl1in' tlxe. 9o vsteam-nozzle 'and longitudinally .adjustablc therein.` Thfclnner end of the rod B5-projects into the combustion-chamberandis provided with n cone-shaped head'26 fordireeting--the oil-dame constantlv and .uniformly at miaugleagainst the encircling stream of coal-dust, thusinsuringitsccnstautignition. 'lhc'outerend bf ythe rod 25 is provided with'a lui-idle 27 anda scale 28, said rod being iuljusta'bly Arcon-ical colf.

'rod audfforccd -lar 30is arranged aronn in by the screw-cap actin "a's'tulling-box-.-

'ahdfis 0f sufcientvsize to supply-the proper 55 an injector for intred Minga-'spray Af .pl and`v 6o steam-"This linjector..u'msists of steamcombustion-chamber under a high velocity, an oil-conduit, a nozzle communicating with the oil-conduit, means for suppying the oil and means for directing the flame of the 'luid fuel across the path of the coal-dust.

10. In a device for separately feeding coaldust and oil into a furnace, the combination of a conduit for supplying coal-dust to the combustion-chamber under a high velocity, an oil-conduit, a nozzle communicating with the oil-conduit, means for supplying the oil to the combustion-chamber under a high ve locity, and a deflect-or for directing the llame of the Huid fuel across the path of the coaldust.

1l. In a device for separately supplying oil and coal-dust into a furnace, the combination of the coal-dust conduit leading into the furnace, means for supplying the coal-dust to the combustioli-chamber, an oil-conduit concentrically arranged within the coal-dust conduit, a steam-supplying nozzle communicatingr with the oil-conduit, said nozzle having a contracted portion and an expanded portion, whereby the fluid fuel will be injected into the combustion-chainher at an increased velocity, and means for directing the flame of the fluid fuel across the path of the coal-dust.

I2. In an injector-blu'ner, the combination ofan oil-conduit provided with a supply-pipe, and a nozzle arranged in the oil-conduit and communicating therewith, said nozzle having a gradually-increased portion in the direction of its exit end anda contracted portion in the rear of the expanded portion, the former of sufficient length to cause the oil-feeding me dium to gradually expand, whereby the pressure will be diminished and the velocity of the medium increased,substantially as described.

13. In an injector-burner, the combination of an oil-conduit provided with a supply-pipe and a nozzle arranged in the oil-conduit and communicating therewith, said nozzle having a gradually-increased portion in the direction of its exit end and a contracted portion in the rear of the expanded portion, the former of suicient `length to cause the oil-feeding medium to gradually expand, whereby the pressure will be diminished and the velocity of the medium increased, with means for regulating the supply of oil.

In testimony whereof I have hereunto signed my name.

GEORGE IV I-II'IE. 

